Super Systems AC20 RS485 Modbus - Manual (Page 31)

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TITLE: MODBUS/J-BUS Protocol for SSi’s- AC20 ENG. 824E REV. 1
BITS FOR DEVICE IN CONTROL MODE
ADDRESS
(decimal) Display R
W
R
JBus Mod
Bus
DESCRIPTION MNEM
CODE
E
A
D I
T
E
201 200 Logic level of external contact Dig1
Range:
0 = Logic level 0
1 = Logic level 1
x
202 201 Logic level of external contact Dig2
Range:
0 = Logic level 0
1 = Logic level 1
x
203 202 Logic level of external contact Dig3
Range:
0 = Logic level 0
1 = Logic level 1
x
205 204 Status relay alarm 1
Range:
0 = Off
1 = On
x
206 205 Status relay alarm 2
Range:
0 = Off
1 = On
x
207 206 Status relay alarm 3
Range:
0 = Off
1 = On
x
211 210 Unsolicited request flag general
Range:
0 = No Parameters change is occurred
1 = Parameters change is occurred
Note:
The bit is set also to signal the start up.
Changes produced by serial link will not be
flaged
The bit resets after reading
x